PDF malware analysis — malicious · d107a1afa83f4023

MALICIOUS

PDF

48.9 KB Created: 2020-08-11 01:51:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4981655c3e56f12492e9b209bf1620be SHA-1: f7a6a3d08fec075901fac6ceca0aa0bb0d5f6567 SHA-256: d107a1afa83f40231c321397acb4ec9d729eb9b02456e014aeb9684fd1f08b3c

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains a URL that matches this redirector. The PDF also contains a mass external PDF link farm, with many links hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute content widely. No scripts were extracted from this sample.

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://ttraff.ru/pify?keyword=antonyms+and+synonyms+list+with+meaning+in+bengali+pdf
- http://files.meilensteinwein.ch/uploads/1/3/2/8/132814935/fefimefekafiruwixo.pdf
- http://files.lanagates.com/uploads/1/3/0/7/130775825/zaneredikajolawaba.pdf
- http://files.nonamemotorsports.com/uploads/1/3/1/3/131380666/meginukutotaboli.pdf
- http://files.katascuba.com/uploads/1/3/1/4/131483253/5349126.pdf
- https://cdn.shopify.com/s/files/1/0433/1021/9432/files/logiratiwumoxovitesunupu.pdf
- https://cdn.shopify.com/s/files/1/0433/9721/8471/files/norma_035_riesgos_psicosociales.pdf
- https://cdn.shopify.com/s/files/1/0437/3259/8938/files/cbse_sample_paper_2020_class_12_physics.pdf
- https://cdn.shopify.com/s/files/1/0431/4746/0768/files/keleropozojopu.pdf
- https://cdn.shopify.com/s/files/1/0447/9506/8567/files/automatic_voltage_regulator_theory.pdf
- https://cdn.shopify.com/s/files/1/0429/7441/2949/files/51189386949.pdf
- https://cdn.shopify.com/s/files/1/0429/1048/2591/files/vajubopezowo.pdf
- https://cdn.shopify.com/s/files/1/0436/2380/9187/files/agenda_setting_kebijakan_publik.pdf
- https://cdn.shopify.com/s/files/1/0428/2312/3100/files/67444180612.pdf
- https://cdn.shopify.com/s/files/1/0431/7003/7924/files/gebuzijovobe.pdf
- https://cdn.shopify.com/s/files/1/0430/5040/1945/files/voxadolasexojeze.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000703b.bin` `4af4e33ce5ca6dd3ecccfa518d3bf70b67472ef83c19045ec3a7b9ab03a4613e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x703B	5472 bytes
`font_01_sfnt_off000082c4.bin` `65d006b725cf95e7f7fde36d7e1fc851f4db01df25765b01bead45fa9ab3b9bc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82C4	11024 bytes
`font_02_sfnt_off0000a810.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA810	4324 bytes

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